# ISO 3929:1976 — Withdrawn and superseded ISO standards

For ISO 3929:1976, item title is Road vehicles — Determination of exhaust carbon monoxide concentration at idle speed; status code is 9599; successor is ISO 3929:1995; withdrawn / published date is 1976-06-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3929:1976 _(verified: appears in the quote below)_
- **Item title:** Road vehicles — Determination of exhaust carbon monoxide concentration at idle speed _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 3929:1995
- **Withdrawn / published date:** 1976-06-01 _(verified: appears in the quote below)_

## What the source says

> 9569,IS,,ISO 3929:1976,Road vehicles — Determination of exhaust carbon monoxide concentration at idle speed,Véhicules routiers — Détermination du monoxyde de carbone émis par un moteur tournant au régime de ralenti,1976-06-01,1,"['13.040.50','43.060']",ISO/TC 22,9599,,[9570],"['en','fr']",2,

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).